function Move(s_object, displacement)
 
   local function wall_at(location)
      if walls[location[2]][location[1]] > 0 then return true; else return false; end
   end
 
   --Generate destination
   destination = {0,0};
   for i,v in ipairs(displacement) do destination[i] = characters[s_object].location[i] + displacement[i]; end;
   
   --Is this destination viable?
   if not wall_at(destination) then characters[s_object].location = destination; end
   
   --Is this destination an enemy?

end



function Attack(s_object, s_victim)
   local function getDamage(s_object)
      return characters[s_object].attack_power;
   end
   
   characters[s_victim].hp = characters[s_victim].hp - getDamage(s_object);
end




function distance(s_object, s_relative)
   return math.sqrt((characters[s_object].location[1] - characters[s_relative].location[1])^2 + (characters[s_object].location[2] - characters[s_relative].location[2])^2);
end

function is_near(s_object, s_relative) return (distance(s_object, s_relative) < 2); end